Abstract: In order to increase the efficiency of a solar thermal system, it is proposed that a measuring robot movable in the longitudinal extension, which can measure the radiance distribution directed at the receiver tube along the receiver and therefore can check if the reflectors of the system are correctly adjusted, be placed on the cover of the receiver, which is supported in a raised manner.

Abstract: In order to produce heliostats, which are used in solar-thermal power stations, the method according to the invention provides for a mirror plate (1) to be placed on a mount structure (2) using a required-shape mould (5) and with the interposition of adhesion means (6). The required-shape mould (5) and the position and orientation with respect to a defined reference point are in this case transferred to the mirror plate (1) and are modeled into the adhesive means (6). Once the adhesive means (6) have cured, the required-shape mould (5) is removed, after which its shape is embossed in the mirror plate (1).